From eaef567cabc5c0dda9706faa0e17e20909131ade Mon Sep 17 00:00:00 2001 From: simpoir Date: Fri, 30 Jan 2009 04:14:48 +0000 Subject: ajout initial du tree jhbuild [jhbuild base] --- (limited to 'src/sugar/graphics/palette.py') diff --git a/src/sugar/graphics/palette.py b/src/sugar/graphics/palette.py new file mode 100644 index 0000000..de5b8e0 --- /dev/null +++ b/src/sugar/graphics/palette.py @@ -0,0 +1,1124 @@ +# Copyright (C) 2007, Eduardo Silva +# Copyright (C) 2008, One Laptop Per Child +# +# This library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2 of the License, or (at your option) any later version. +# +# This library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with this library; if not, write to the +# Free Software Foundation, Inc., 59 Temple Place - Suite 330, +# Boston, MA 02111-1307, USA. + +""" +STABLE. +""" + +import logging + +import gtk +import gobject +import hippo +import pango + +from sugar.graphics import palettegroup +from sugar.graphics import animator +from sugar.graphics import style +from sugar.graphics.icon import Icon +from sugar import _sugarext + +# Helper function to find the gap position and size of widget a +def _calculate_gap(a, b): + # Test for each side if the palette and invoker are + # adjacent to each other. + gap = True + + if a.y + a.height == b.y: + gap_side = gtk.POS_BOTTOM + elif a.x + a.width == b.x: + gap_side = gtk.POS_RIGHT + elif a.x == b.x + b.width: + gap_side = gtk.POS_LEFT + elif a.y == b.y + b.height: + gap_side = gtk.POS_TOP + else: + gap = False + + if gap: + if gap_side == gtk.POS_BOTTOM or gap_side == gtk.POS_TOP: + gap_start = min(a.width, max(0, b.x - a.x)) + gap_size = max(0, min(a.width, + (b.x + b.width) - a.x) - gap_start) + elif gap_side == gtk.POS_RIGHT or gap_side == gtk.POS_LEFT: + gap_start = min(a.height, max(0, b.y - a.y)) + gap_size = max(0, min(a.height, + (b.y + b.height) - a.y) - gap_start) + + if gap and gap_size > 0: + return (gap_side, gap_start, gap_size) + else: + return False + +class MouseSpeedDetector(gobject.GObject): + + __gsignals__ = { + 'motion-slow': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([])), + 'motion-fast': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([])), + } + + _MOTION_SLOW = 1 + _MOTION_FAST = 2 + + def __init__(self, parent, delay, thresh): + """Create MouseSpeedDetector object, + delay in msec + threshold in pixels (per tick of 'delay' msec)""" + + gobject.GObject.__init__(self) + + self._threshold = thresh + self._parent = parent + self._delay = delay + self._state = None + self._timeout_hid = None + self._mouse_pos = None + + def start(self): + self.stop() + + self._mouse_pos = self._get_mouse_position() + self._timeout_hid = gobject.timeout_add(self._delay, self._timer_cb) + + def stop(self): + if self._timeout_hid is not None: + gobject.source_remove(self._timeout_hid) + self._state = None + + def _get_mouse_position(self): + display = gtk.gdk.display_get_default() + screen_, x, y, mask_ = display.get_pointer() + return (x, y) + + def _detect_motion(self): + oldx, oldy = self._mouse_pos + (x, y) = self._get_mouse_position() + self._mouse_pos = (x, y) + + dist2 = (oldx - x)**2 + (oldy - y)**2 + if dist2 > self._threshold**2: + return True + else: + return False + + def _timer_cb(self): + motion = self._detect_motion() + if motion and self._state != self._MOTION_FAST: + self.emit('motion-fast') + self._state = self._MOTION_FAST + elif not motion and self._state != self._MOTION_SLOW: + self.emit('motion-slow') + self._state = self._MOTION_SLOW + + return True + +class Palette(gtk.Window): + PRIMARY = 0 + SECONDARY = 1 + + __gtype_name__ = 'SugarPalette' + + __gsignals__ = { + 'popup' : (gobject.SIGNAL_RUN_FIRST, + gobject.TYPE_NONE, ([])), + 'popdown' : (gobject.SIGNAL_RUN_FIRST, + gobject.TYPE_NONE, ([])) + } + + # DEPRECATED: label is passed with the primary-text property, accel_path + # is set via the invoker property, and menu_after_content is not used + def __init__(self, label=None, accel_path=None, menu_after_content=False, + text_maxlen=0, **kwargs): + + self.palette_state = self.PRIMARY + + self._primary_text = None + self._secondary_text = None + self._icon = None + self._icon_visible = True + self._group_id = None + + palette_box = gtk.VBox() + + primary_box = gtk.HBox() + palette_box.pack_start(primary_box, expand=False) + primary_box.show() + + self._icon_box = gtk.HBox() + self._icon_box.set_size_request(style.zoom(style.GRID_CELL_SIZE), -1) + primary_box.pack_start(self._icon_box, expand=False) + + labels_box = gtk.VBox() + self._label_alignment = gtk.Alignment(xalign=0, yalign=0.5, + xscale=1, yscale=0.33) + self._label_alignment.set_padding(0, 0, style.DEFAULT_SPACING, + style.DEFAULT_SPACING) + self._label_alignment.add(labels_box) + self._label_alignment.show() + primary_box.pack_start(self._label_alignment, expand=True) + labels_box.show() + + self._label = gtk.AccelLabel('') + self._label.set_alignment(0, 0.5) + + if text_maxlen > 0: + self._label.set_max_width_chars(text_maxlen) + self._label.set_ellipsize(pango.ELLIPSIZE_MIDDLE) + labels_box.pack_start(self._label, expand=True) + + self._secondary_label = gtk.Label() + self._secondary_label.set_alignment(0, 0.5) + + if text_maxlen > 0: + self._secondary_label.set_max_width_chars(text_maxlen) + self._secondary_label.set_ellipsize(pango.ELLIPSIZE_MIDDLE) + + labels_box.pack_start(self._secondary_label, expand=True) + + self._secondary_box = gtk.VBox() + palette_box.pack_start(self._secondary_box) + + self._separator = gtk.HSeparator() + self._secondary_box.pack_start(self._separator) + + self._menu_content_separator = gtk.HSeparator() + + self._popup_anim = animator.Animator(.5, 10) + self._popup_anim.add(_PopupAnimation(self)) + + self._secondary_anim = animator.Animator(2.0, 10) + self._secondary_anim.add(_SecondaryAnimation(self)) + + self._popdown_anim = animator.Animator(0.6, 10) + self._popdown_anim.add(_PopdownAnimation(self)) + + # we init after initializing all of our containers + gobject.GObject.__init__(self, **kwargs) + + self.set_decorated(False) + self.set_resizable(False) + # Just assume xthickness and ythickness are the same + self.set_border_width(self.get_style().xthickness) + + accel_group = gtk.AccelGroup() + self.set_data('sugar-accel-group', accel_group) + self.add_accel_group(accel_group) + + primary_box.set_size_request(-1, style.zoom(style.GRID_CELL_SIZE) + - 2 * self.get_border_width()) + + + self.connect('show', self.__show_cb) + self.connect('hide', self.__hide_cb) + self.connect('realize', self.__realize_cb) + self.connect('destroy', self.__destroy_cb) + + self._alignment = None + self._old_alloc = None + self._full_request = [0, 0] + self._cursor_x = 0 + self._cursor_y = 0 + self._invoker = None + self._group_id = None + self._up = False + self._menu_box = None + self._content = None + self._invoker_hids = [] + + self.set_group_id("default") + + # we set these for backward compatibility + if label is not None: + self.props.primary_text = label + + self._add_menu() + self._secondary_box.pack_start(self._menu_content_separator) + self._add_content() + + self.action_bar = PaletteActionBar() + self._secondary_box.pack_start(self.action_bar) + self.action_bar.show() + + self.add(palette_box) + palette_box.show() + + # The menu is not shown here until an item is added + self.menu = _Menu(self) + self.menu.connect('item-inserted', self.__menu_item_inserted_cb) + + self.connect('enter-notify-event', self.__enter_notify_event_cb) + self.connect('leave-notify-event', self.__leave_notify_event_cb) + + self._mouse_detector = MouseSpeedDetector(self, 200, 5) + self._mouse_detector.connect('motion-slow', self._mouse_slow_cb) + + def __menu_item_inserted_cb(self, menu): + self._update_separators() + + def __destroy_cb(self, palette): + self.set_group_id(None) + + # Break the reference cycle. It looks like the gc is not able to free + # it, possibly because gtk.Menu memory handling is very special. + self.menu = None + + def _add_menu(self): + self._menu_box = gtk.VBox() + self._secondary_box.pack_start(self._menu_box) + self._menu_box.show() + + def _add_content(self): + # The content is not shown until a widget is added + self._content = gtk.VBox() + self._content.set_border_width(style.DEFAULT_SPACING) + self._secondary_box.pack_start(self._content) + + def do_style_set(self, previous_style): + # Prevent a warning from pygtk + if previous_style is not None: + gtk.Window.do_style_set(self, previous_style) + self.set_border_width(self.get_style().xthickness) + + def is_up(self): + return self._up + + def get_rect(self): + win_x, win_y = self.window.get_origin() + rectangle = self.get_allocation() + + x = win_x + rectangle.x + y = win_y + rectangle.y + width = rectangle.width + height = rectangle.height + + return gtk.gdk.Rectangle(x, y, width, height) + + def set_invoker(self, invoker): + for hid in self._invoker_hids[:]: + self._invoker.disconnect(hid) + self._invoker_hids.remove(hid) + + self._invoker = invoker + if invoker is not None: + self._invoker_hids.append(self._invoker.connect( + 'mouse-enter', self._invoker_mouse_enter_cb)) + self._invoker_hids.append(self._invoker.connect( + 'mouse-leave', self._invoker_mouse_leave_cb)) + self._invoker_hids.append(self._invoker.connect( + 'right-click', self._invoker_right_click_cb)) + if hasattr(invoker.props, 'widget'): + self._update_accel_widget() + logging.debug(('Setup widget', invoker.props.widget)) + self._invoker_hids.append(self._invoker.connect( + 'notify::widget', self._invoker_widget_changed_cb)) + + def get_invoker(self): + return self._invoker + + invoker = gobject.property(type=object, + getter=get_invoker, + setter=set_invoker) + + def _update_accel_widget(self): + assert self.props.invoker is not None + self._label.props.accel_widget = self.props.invoker.props.widget + + def set_primary_text(self, label, accel_path=None): + self._primary_text = label + + if label is not None: + self._label.set_markup('%s' % label) + self._label.show() + + def get_primary_text(self): + return self._primary_text + + primary_text = gobject.property(type=str, + getter=get_primary_text, + setter=set_primary_text) + + def set_secondary_text(self, label): + self._secondary_text = label + + if label is None: + self._secondary_label.hide() + else: + self._secondary_label.set_text(label) + self._secondary_label.show() + + def get_secondary_text(self): + return self._secondary_text + + + secondary_text = gobject.property(type=str, + getter=get_secondary_text, + setter=set_secondary_text) + def _show_icon(self): + self._label_alignment.set_padding(0, 0, 0, style.DEFAULT_SPACING) + self._icon_box.show() + + def _hide_icon(self): + self._icon_box.hide() + self._label_alignment.set_padding(0, 0, style.DEFAULT_SPACING, + style.DEFAULT_SPACING) + + def set_icon(self, icon): + if icon is None: + self._icon = None + self._hide_icon() + else: + if self._icon: + self._icon_box.remove(self._icon) + + self._icon = icon + self._icon.props.icon_size = gtk.ICON_SIZE_LARGE_TOOLBAR + self._icon_box.pack_start(self._icon) + self._icon.show() + self._show_icon() + + def get_icon(self): + return self._icon + + icon = gobject.property(type=object, getter=get_icon, setter=set_icon) + + def set_icon_visible(self, visible): + self._icon_visible = visible + + if visible and self._icon is not None: + self._show_icon() + else: + self._hide_icon() + + def get_icon_visible(self): + return self._icon_visilbe + + icon_visible = gobject.property(type=bool, + default=True, + getter=get_icon_visible, + setter=set_icon_visible) + + def set_content(self, widget): + if len(self._content.get_children()) > 0: + self._content.remove(self._content.get_children()[0]) + + if widget is not None: + self._content.add(widget) + self._content.show() + else: + self._content.hide() + + self._update_accept_focus() + self._update_separators() + + def set_group_id(self, group_id): + if self._group_id: + group = palettegroup.get_group(self._group_id) + group.remove(self) + if group_id: + self._group_id = group_id + group = palettegroup.get_group(group_id) + group.add(self) + + def get_group_id(self): + return self._group_id + + group_id = gobject.property(type=str, + getter=get_group_id, + setter=set_group_id) + + def do_size_request(self, requisition): + gtk.Window.do_size_request(self, requisition) + + # gtk.AccelLabel request doesn't include the accelerator. + label_width = self._label_alignment.size_request()[0] + \ + self._label.get_accel_width() + \ + 2 * self.get_border_width() + + requisition.width = max(requisition.width, + style.zoom(style.GRID_CELL_SIZE * 2), + label_width, + self._full_request[0]) + + def do_size_allocate(self, allocation): + gtk.Window.do_size_allocate(self, allocation) + + if self._old_alloc is None or \ + self._old_alloc.x != allocation.x or \ + self._old_alloc.y != allocation.y or \ + self._old_alloc.width != allocation.width or \ + self._old_alloc.height != allocation.height: + self.queue_draw() + + # We need to store old allocation because when size_allocate + # is called widget.allocation is already updated. + # gtk.Window resizing is different from normal containers: + # the X window is resized, widget.allocation is updated from + # the configure request handler and finally size_allocate is called. + self._old_alloc = allocation + + def do_expose_event(self, event): + # We want to draw a border with a beautiful gap + if self._invoker is not None and self._invoker.has_rectangle_gap(): + invoker = self._invoker.get_rect() + palette = self.get_rect() + + gap = _calculate_gap(palette, invoker) + else: + gap = False + + allocation = self.get_allocation() + wstyle = self.get_style() + + if gap: + wstyle.paint_box_gap(event.window, gtk.STATE_PRELIGHT, + gtk.SHADOW_IN, event.area, self, "palette", + 0, 0, allocation.width, allocation.height, + gap[0], gap[1], gap[2]) + else: + wstyle.paint_box(event.window, gtk.STATE_PRELIGHT, + gtk.SHADOW_IN, event.area, self, "palette", + 0, 0, allocation.width, allocation.height) + + # Fall trough to the container expose handler. + # (Leaving out the window expose handler which redraws everything) + gtk.Bin.do_expose_event(self, event) + + def _update_separators(self): + visible = len(self.menu.get_children()) > 0 or \ + len(self._content.get_children()) > 0 + self._separator.props.visible = visible + + visible = len(self.menu.get_children()) > 0 and \ + len(self._content.get_children()) > 0 + self._menu_content_separator.props.visible = visible + + def _update_accept_focus(self): + accept_focus = len(self._content.get_children()) + if self.window: + self.window.set_accept_focus(accept_focus) + + def __realize_cb(self, widget): + self.window.set_type_hint(gtk.gdk.WINDOW_TYPE_HINT_DIALOG) + self._update_accept_focus() + + def _update_full_request(self): + if self.palette_state == self.PRIMARY: + self.menu.embed(self._menu_box) + self._secondary_box.show() + + self._full_request = self.size_request() + + if self.palette_state == self.PRIMARY: + self.menu.unembed() + self._secondary_box.hide() + + def _update_position(self): + invoker = self._invoker + if invoker is None or self._alignment is None: + logging.error('Cannot update the palette position.') + return + + rect = self.size_request() + position = invoker.get_position_for_alignment(self._alignment, rect) + if position is None: + position = invoker.get_position(rect) + + self.move(position.x, position.y) + + def popup(self, immediate=False, state=None): + logging.debug('Palette.popup immediate %r' % immediate) + + if state is None: + state = self.PRIMARY + self.set_state(state) + + if self._invoker is not None: + self._update_full_request() + self._alignment = self._invoker.get_alignment(self._full_request) + self._update_position() + self.set_transient_for(self._invoker.get_toplevel()) + + self._popdown_anim.stop() + + if not immediate: + self._popup_anim.start() + else: + self.show() + + self._secondary_anim.start() + + def popdown(self, immediate=False): + logging.debug('Palette.popdown immediate %r' % immediate) + self._popup_anim.stop() + + self._mouse_detector.stop() + + if not immediate: + self._popdown_anim.start() + else: + self.hide() + + def set_state(self, state): + if self.palette_state == state: + return + + if state == self.PRIMARY: + self.menu.unembed() + self._secondary_box.hide() + elif state == self.SECONDARY: + self.menu.embed(self._menu_box) + self._secondary_box.show() + self._update_position() + + self.palette_state = state + + def _mouse_slow_cb(self, widget): + self._mouse_detector.stop() + self._palette_do_popup() + + def _palette_do_popup(self): + immediate = False + + if self.is_up(): + self._popdown_anim.stop() + return + + if self._group_id: + group = palettegroup.get_group(self._group_id) + if group and group.is_up(): + immediate = True + group.popdown() + + self.popup(immediate=immediate) + + def _invoker_widget_changed_cb(self, invoker, spec): + self._update_accel_widget() + + def _invoker_mouse_enter_cb(self, invoker): + self._mouse_detector.start() + + def _invoker_mouse_leave_cb(self, invoker): + self._mouse_detector.stop() + self.popdown() + + def _invoker_right_click_cb(self, invoker): + self.popup(immediate=True, state=self.SECONDARY) + + def __enter_notify_event_cb(self, widget, event): + if event.detail != gtk.gdk.NOTIFY_INFERIOR and \ + event.mode == gtk.gdk.CROSSING_NORMAL: + self._popdown_anim.stop() + self._secondary_anim.start() + + def __leave_notify_event_cb(self, widget, event): + if event.detail != gtk.gdk.NOTIFY_INFERIOR and \ + event.mode == gtk.gdk.CROSSING_NORMAL: + self.popdown() + + def __show_cb(self, widget): + self.menu.set_active(True) + + self._invoker.notify_popup() + + self._up = True + self.emit('popup') + + def __hide_cb(self, widget): + logging.debug('__hide_cb') + self.menu.set_active(False) + + self._secondary_anim.stop() + + if self._invoker: + self._invoker.notify_popdown() + + self._up = False + self.emit('popdown') + + +class PaletteActionBar(gtk.HButtonBox): + def add_action(self, label, icon_name=None): + button = gtk.Button(label) + + if icon_name: + icon = Icon(icon_name) + button.set_image(icon) + icon.show() + + self.pack_start(button) + button.show() + +class _Menu(_sugarext.Menu): + __gtype_name__ = 'SugarPaletteMenu' + + __gsignals__ = { + 'item-inserted': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([])) + } + + def __init__(self, palette): + _sugarext.Menu.__init__(self) + self._palette = palette + + def do_insert(self, item, position): + _sugarext.Menu.do_insert(self, item, position) + self.emit('item-inserted') + self.show() + + def attach(self, child, left_attach, right_attach, + top_attach, bottom_attach): + _sugarext.Menu.attach(self, child, left_attach, right_attach, + top_attach, bottom_attach) + self.emit('item-inserted') + self.show() + + def do_expose_event(self, event): + # Ignore the Menu expose, just do the MenuShell expose to prevent any + # border from being drawn here. A border is drawn by the palette object + # around everything. + gtk.MenuShell.do_expose_event(self, event) + + def do_grab_notify(self, was_grabbed): + # Ignore grab_notify as the menu would close otherwise + pass + + def do_deactivate(self): + self._palette.hide() + +class _PopupAnimation(animator.Animation): + def __init__(self, palette): + animator.Animation.__init__(self, 0.0, 1.0) + self._palette = palette + + def next_frame(self, current): + if current == 1.0: + self._palette.show() + +class _SecondaryAnimation(animator.Animation): + def __init__(self, palette): + animator.Animation.__init__(self, 0.0, 1.0) + self._palette = palette + + def next_frame(self, current): + if current == 1.0: + self._palette.set_state(Palette.SECONDARY) + +class _PopdownAnimation(animator.Animation): + def __init__(self, palette): + animator.Animation.__init__(self, 0.0, 1.0) + self._palette = palette + + def next_frame(self, current): + if current == 1.0: + self._palette.hide() + +class Invoker(gobject.GObject): + __gtype_name__ = 'SugarPaletteInvoker' + + __gsignals__ = { + 'mouse-enter': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([])), + 'mouse-leave': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([])), + 'right-click': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([])), + 'focus-out': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([])) + } + + ANCHORED = 0 + AT_CURSOR = 1 + + BOTTOM = [(0.0, 0.0, 0.0, 1.0), + (-1.0, 0.0, 1.0, 1.0)] + RIGHT = [(0.0, 0.0, 1.0, 0.0), + (0.0, -1.0, 1.0, 1.0)] + TOP = [(0.0, -1.0, 0.0, 0.0), + (-1.0, -1.0, 1.0, 0.0)] + LEFT = [(-1.0, 0.0, 0.0, 0.0), + (-1.0, -1.0, 0.0, 1.0)] + + def __init__(self): + gobject.GObject.__init__(self) + + self.parent = None + + self._screen_area = gtk.gdk.Rectangle(0, 0, gtk.gdk.screen_width(), + gtk.gdk.screen_height()) + self._position_hint = self.ANCHORED + self._cursor_x = -1 + self._cursor_y = -1 + self._palette = None + + def attach(self, parent): + self.parent = parent + + def detach(self): + self.parent = None + if self._palette is not None: + self._palette.destroy() + self._palette = None + + def _get_position_for_alignment(self, alignment, palette_dim): + palette_halign = alignment[0] + palette_valign = alignment[1] + invoker_halign = alignment[2] + invoker_valign = alignment[3] + + if self._cursor_x == -1 or self._cursor_y == -1: + display = gtk.gdk.display_get_default() + screen_, x, y, mask_ = display.get_pointer() + self._cursor_x = x + self._cursor_y = y + + if self._position_hint is self.ANCHORED: + rect = self.get_rect() + else: + dist = style.PALETTE_CURSOR_DISTANCE + rect = gtk.gdk.Rectangle(self._cursor_x - dist, + self._cursor_y - dist, + dist * 2, dist * 2) + + palette_width, palette_height = palette_dim + + x = rect.x + rect.width * invoker_halign + \ + palette_width * palette_halign + + y = rect.y + rect.height * invoker_valign + \ + palette_height * palette_valign + + return gtk.gdk.Rectangle(int(x), int(y), + palette_width, palette_height) + + def _in_screen(self, rect): + return rect.x >= self._screen_area.x and \ + rect.y >= self._screen_area.y and \ + rect.x + rect.width <= self._screen_area.width and \ + rect.y + rect.height <= self._screen_area.height + + def _get_area_in_screen(self, rect): + """Return area of rectangle visible in the screen""" + + x1 = max(rect.x, self._screen_area.x) + y1 = max(rect.y, self._screen_area.y) + x2 = min(rect.x + rect.width, + self._screen_area.x + self._screen_area.width) + y2 = min(rect.y + rect.height, + self._screen_area.y + self._screen_area.height) + + return (x2 - x1) * (y2 - y1) + + def _get_alignments(self): + if self._position_hint is self.AT_CURSOR: + return [(0.0, 0.0, 1.0, 1.0), + (0.0, -1.0, 1.0, 0.0), + (-1.0, -1.0, 0.0, 0.0), + (-1.0, 0.0, 0.0, 1.0)] + else: + return self.BOTTOM + self.RIGHT + self.TOP + self.LEFT + + def get_position_for_alignment(self, alignment, palette_dim): + rect = self._get_position_for_alignment(alignment, palette_dim) + if self._in_screen(rect): + return rect + else: + return None + + def get_position(self, palette_dim): + alignment = self.get_alignment(palette_dim) + return self._get_position_for_alignment(alignment, palette_dim) + + def get_alignment(self, palette_dim): + best_alignment = None + best_area = -1 + for alignment in self._get_alignments(): + pos = self._get_position_for_alignment(alignment, palette_dim) + if self._in_screen(pos): + return alignment + + area = self._get_area_in_screen(pos) + if area > best_area: + best_alignment = alignment + best_area = area + + # Palette horiz/vert alignment + ph = best_alignment[0] + pv = best_alignment[1] + + # Invoker horiz/vert alignment + ih = best_alignment[2] + iv = best_alignment[3] + + rect = self.get_rect() + screen_area = self._screen_area + + if best_alignment in self.LEFT or best_alignment in self.RIGHT: + dtop = rect.y - screen_area.y + dbottom = screen_area.y + screen_area.height - rect.y - rect.width + + iv = 0 + + # Set palette_valign to align to screen on the top + if dtop > dbottom: + pv = -float(dtop) / palette_dim[1] + + # Set palette_valign to align to screen on the bottom + else: + pv = -float(palette_dim[1] - dbottom - rect.height) \ + / palette_dim[1] + + else: + dleft = rect.x - screen_area.x + dright = screen_area.x + screen_area.width - rect.x - rect.width + + ih = 0 + + # Set palette_halign to align to screen on left + if dleft > dright: + ph = -float(dleft) / palette_dim[0] + + # Set palette_halign to align to screen on right + else: + ph = -float(palette_dim[0] - dright - rect.width) \ + / palette_dim[0] + + return (ph, pv, ih, iv) + + def has_rectangle_gap(self): + return False + + def draw_rectangle(self, event, palette): + pass + + def notify_popup(self): + pass + + def notify_popdown(self): + self._cursor_x = -1 + self._cursor_y = -1 + + def _ensure_palette_exists(self): + if self.parent and self.palette is None: + palette = self.parent.create_palette() + if palette: + self.palette = palette + + def notify_mouse_enter(self): + self._ensure_palette_exists() + self.emit('mouse-enter') + + def notify_mouse_leave(self): + self.emit('mouse-leave') + + def notify_right_click(self): + self._ensure_palette_exists() + self.emit('right-click') + + def get_palette(self): + return self._palette + + def set_palette(self, palette): + if self._palette: + self._palette.props.invoker = None + + self._palette = palette + + if self._palette: + self._palette.props.invoker = self + + palette = gobject.property( + type=object, setter=set_palette, getter=get_palette) + +class WidgetInvoker(Invoker): + def __init__(self, parent=None, widget=None): + Invoker.__init__(self) + + self._widget = None + self._enter_hid = None + self._leave_hid = None + self._release_hid = None + + if parent or widget: + self.attach_widget(parent, widget) + + def attach_widget(self, parent, widget=None): + if widget: + self._widget = widget + else: + self._widget = parent + + self.notify('widget') + + self._enter_hid = self._widget.connect('enter-notify-event', + self.__enter_notify_event_cb) + self._leave_hid = self._widget.connect('leave-notify-event', + self.__leave_notify_event_cb) + self._release_hid = self._widget.connect('button-release-event', + self.__button_release_event_cb) + + self.attach(parent) + + def detach(self): + Invoker.detach(self) + self._widget.disconnect(self._enter_hid) + self._widget.disconnect(self._leave_hid) + self._widget.disconnect(self._release_hid) + + def get_rect(self): + allocation = self._widget.get_allocation() + if self._widget.window is not None: + x, y = self._widget.window.get_origin() + else: + logging.warning( + "Trying to position palette with invoker that's not realized.") + x = 0 + y = 0 + + if self._widget.flags() & gtk.NO_WINDOW: + x += allocation.x + y += allocation.y + + width = allocation.width + height = allocation.height + + return gtk.gdk.Rectangle(x, y, width, height) + + def has_rectangle_gap(self): + return True + + def draw_rectangle(self, event, palette): + if self._widget.flags() & gtk.NO_WINDOW: + x, y = self._widget.allocation.x, self._widget.allocation.y + else: + x = y = 0 + + wstyle = self._widget.get_style() + gap = _calculate_gap(self.get_rect(), palette.get_rect()) + + if gap: + wstyle.paint_box_gap(event.window, gtk.STATE_PRELIGHT, + gtk.SHADOW_IN, event.area, self._widget, + "palette-invoker", x, y, + self._widget.allocation.width, + self._widget.allocation.height, + gap[0], gap[1], gap[2]) + else: + wstyle.paint_box(event.window, gtk.STATE_PRELIGHT, + gtk.SHADOW_IN, event.area, self._widget, + "palette-invoker", x, y, + self._widget.allocation.width, + self._widget.allocation.height) + + def __enter_notify_event_cb(self, widget, event): + self.notify_mouse_enter() + + def __leave_notify_event_cb(self, widget, event): + self.notify_mouse_leave() + + def __button_release_event_cb(self, widget, event): + if event.button == 3: + self.notify_right_click() + return True + else: + return False + + def get_toplevel(self): + return self._widget.get_toplevel() + + def notify_popup(self): + Invoker.notify_popup(self) + self._widget.queue_draw() + + def notify_popdown(self): + Invoker.notify_popdown(self) + self._widget.queue_draw() + + def _get_widget(self): + return self._widget + widget = gobject.property(type=object, getter=_get_widget, setter=None) + +class CanvasInvoker(Invoker): + def __init__(self, parent=None): + Invoker.__init__(self) + + self._position_hint = self.AT_CURSOR + self._motion_hid = None + self._release_hid = None + self._item = None + + if parent: + self.attach(parent) + + def attach(self, parent): + Invoker.attach(self, parent) + + self._item = parent + self._motion_hid = self._item.connect('motion-notify-event', + self.__motion_notify_event_cb) + self._release_hid = self._item.connect('button-release-event', + self.__button_release_event_cb) + + def detach(self): + Invoker.detach(self) + self._item.disconnect(self._motion_hid) + self._item.disconnect(self._release_hid) + + def get_default_position(self): + return self.AT_CURSOR + + def get_rect(self): + context = self._item.get_context() + if context: + x, y = context.translate_to_screen(self._item) + width, height = self._item.get_allocation() + return gtk.gdk.Rectangle(x, y, width, height) + else: + return gtk.gdk.Rectangle() + + def __motion_notify_event_cb(self, button, event): + if event.detail == hippo.MOTION_DETAIL_ENTER: + self.notify_mouse_enter() + elif event.detail == hippo.MOTION_DETAIL_LEAVE: + self.notify_mouse_leave() + + return False + + def __button_release_event_cb(self, button, event): + if event.button == 3: + self.notify_right_click() + return True + else: + return False + + def get_toplevel(self): + return hippo.get_canvas_for_item(self._item).get_toplevel() + +class ToolInvoker(WidgetInvoker): + def __init__(self, parent=None): + WidgetInvoker.__init__(self) + + if parent: + self.attach_tool(parent) + + def attach_tool(self, widget): + self.attach_widget(widget, widget.child) + + def _get_alignments(self): + parent = self._widget.get_parent() + if parent is None: + return WidgetInvoker._get_alignments() + + if parent.get_orientation() is gtk.ORIENTATION_HORIZONTAL: + return self.BOTTOM + self.TOP + else: + return self.LEFT + self.RIGHT -- cgit v0.9.1